[Samba] libldb-samba.so does not link in source4 samba

[Shirish Pargaonkar]

I am building in source4.  Where are these symbols defined?  Is any
library that is not getting linked?

samba/source4 # make
WAF_MAKE=1 ../buildtools/bin/waf build
Waf: Entering directory `/usr/src/bamba/samba/source4/bin'
[1816/1961] Linking default/source4/lib/ldb/libldb-samba4.so
[1908/1961] Linking default/source4/lib/ldb/ldbadd
default/source4/lib/ldb/libldb-samba4.so: undefined reference to `zError'
default/source4/lib/ldb/libldb-samba4.so: undefined reference to `inflateReset'
default/source4/lib/ldb/libldb-samba4.so: undefined reference to `deflate'
default/source4/lib/ldb/libldb-samba4.so: undefined reference to `inflateInit2_'
default/source4/lib/ldb/libldb-samba4.so: undefined reference to `inflate'
default/source4/lib/ldb/libldb-samba4.so: undefined reference to `deflateReset'
default/source4/lib/ldb/libldb-samba4.so: undefined reference to
`inflateSetDictionary'
default/source4/lib/ldb/libldb-samba4.so: undefined reference to `deflateInit2_'
default/source4/lib/ldb/libldb-samba4.so: undefined reference to
`deflateSetDictionary'
collect2: ld returned 1 exit status
Waf: Leaving directory `/usr/src/bamba/samba/source4/bin'
Build failed:  -> task failed (err #1):
        {task: cc_link
ldbutil_28.o,cmdline_28.o,ldbadd_29.o,popt_common_3.o,credentials_1.o,popt_credentials_5.o
-> ldbadd}
make: *** [all] Error 1